Hi Arvid,Originally posted by arvidb
Hi everybody! I hope you all are having a nice christmas!
I need some advice about timing pulleys. My motors have 14 mm axles, the screws have 10 mm axles. I want about a 2.5:1 reduction. Also, I need a type with low backlash.
Do you guys drill/turn your own bores in the pulleys? If so, how to do that without a lathe? And will a setscrew be enough to keep the pulleys from skidding on the axles? The axles are all smooth, no flats.
I haven't been able to find anything that would fit my axle dimensions and reduction ratio .
// Arvid
Have you checked with a supplier like Browning or Gates? They manufacture two piece timing pulleys with taperlock bushings which I think you can buy to match standard shaft sizes, both inch and metric. There is no backlash in a timing belt drive, unless your slides were extremely stiff for some reason. I have used timing belts on many servo drives and never had any backlash attributable to the belt and pulleys.